Typewriting machine



6 Sheets-Sheet 1 INVENTOR ATTORNEY Aug. 2, 1932 E E. BARNEY TYPEWRITING MACHINE Filed April 13, 1927 W\TNESSEL-3 Aug. 2, 1932. E. E. BARNEY 1,370,036

TYPEWRITING MACHINE Filed April 15,1921 6 Sheets-Sheet 2 INVENTOR WITNESSES 3 i4; Z A

- BY Min/ML M ATTORNEY g 2, 1932- E. E. BARNEY TYPEWRITING MACHINE Filed April 13, 1927 6 Sheets-Sheet 4 MM m5 N 2% @N g INVENTOR 24.; 6E BY ATTORNEY MEN chum

g- 2, 1932- E. E. BARNEY TYPEWRITING MACHINE 6 Sheets-Sheet 5 Filed April 15, 1927 INVENTOR A TTORNE Y I I a hem WlTNEESEE Aug. 2,1932. E. E. BARNEY 1,870,086

TYPEWRITING MACHINE Filed April 13. 19 6 Sheets-Sheet 6 WITNESSES INVENTOR (SM 8, B BY Q g M ATTORNEY Patented Aug. 2, 1932 rrso STATES PATENT GFFEQE EDWIN E. BARNEY, OF NEW ROCHELLE, NE\V YORK, ASSIG-NOR TO REMINGTON TYPE- TVBZTER COMPANY, OF ILION, NEW YORK, A CORPORATION OF NEW YORK TYPEWRITING MACHINE Application filed April 13,

My invention relates to multiple-billing mechanism for typewriting machines, and has for its general object the provision ofa new and improved machine for handling multiform billing sheets of the character disclosed in the patent to E. Z. Lewis, No.

932,713, dated Aug. 31, 1909, which sheets, interleaved with a reproducing medium, are wound on the platen of the machine, one complete wind or wrap being allotted to each separate form on the sheet, so that the number of forms to be printed at a single operation corresponds with the number of times the sheet is wound or wrapped on the platen. The carrying out of my invention in practicable, form has resulted in various detail improvements relating to the feed and control of the multiform work sheet or form sheet itself, the supplying, feeding and con trol of the reproducing medium or carbon sheet, and various safety devices for insuring the proper cooperation ofinter-related parts, all as will hereinafter appear.

To the above ends my present invent-i consists in the features of construction, combinations of devices and arrangement of parts hereinafter described and particularly pointed out in the appended claims.

The principle of my invention will be found adapted to various styles of writing machines, but the preferred form of the invention, as illustrated in the accompanying drawings, has been applied to a 'N 2O Remington typewriting machine.

In the drawings:

Fig. l is a front elevation on a reduced scale of a Remington typewriting machine embodying my invention, the upper part of the frame or supporting stand on which the machine is mounted also being shown.

Fig. 2 is a full-sized side elevation of the carriage of the machine with my invention applied thereto,

3 is a fragmentary vertical sectional view taken on'planes indicated by the section line 33 in Fig. 2.

Fig. 4 is a fragmentary, vertical, sectional view taken onplanes indicated by the section line 4% in Fig. 2..

Fig. 5 is a vertical front-to-rear sectional 1927. Serial No. 183,466.

view taken on a plane indicated by the sec tion line 55 in Fig. 1, but drawn to a somewhat larger scale.

Fig. 6 is a fragmentary front-to-rear vertitical sectional view taken on a plane inclicated by the section line 6-6 in Fig. 1, but drawn to a larger scale. 7

Fig. 7 is a fragmentary front-to-rear vertical sectional View taken on a plane indicated by the section line 7-7 in Fig. 1 but drawn to a largerscale.

Fig. 8 is a fragmentary operating view on a plane corresponding with that indicated by the sectionline 88 in Fig. 1, but parts being shown in different positions from the normal position of Fig. 1.

At all section lines arrows indicate the di rection in which the View is taken.

While this case has been divided, and some of the claims originally presented herein are nowincluded in two divisional cases, it is deemed necessary to describe the machine as a whole in order that a proper understanding of the features claimed herein may be arrived at. ,7 I

The divisional cases-referred to are as follows:

Serial #285,88, filed June 16, 1928;

Serial #293,435, filed July17, 1928.

Various features which are claimed in said divisional cases willv be hereinafter pointed out.

Referring first generally to the embodiment of the invention herein disclosed, there is mounted on standards projecting upward from the stand on which the machine is supported, a magazine or box adapted to con taina supply of multiple-form sheets or work sheets. In the present instance eachone of these separate sheets contains six printed forms or blanks, the sheets being folded transversely between each two of the forms. The forms are adapted to be withdrawn from the magazine by hand, one by one, and introduced into the machine over a table or guide plate to a platen-carried clamp which at this time is at the front side of the platen, so that they may be front-fed thereover. Normally lying between the open clamp and the face of the platen is the free end of a reproducing sheet or carbon strip which is supplied from acarbon carrying roll which is connected by gearing to special platen turning mechanism operative by a handle. Said handle is connected by gearing to the platen and is effective when actuated to close the clamp, thereby clamping the bottom edge of the bill sheet and through it the carbon paper to the platen and thereafter to turn the platen continuously in backward direction through a plurality of complete revolutions, thus winding thereon the bill sheet and the carbon sheet in interleaved relationship so that the type imprints will be reproduced on all of the bill forms at a single printing operation. As soon as the bill is completely wound in place, paper feeding devices are thrown into cooperative relationship with the platen in order to feed the bill from line to line and also to promote the proper ejection of the bill when the platen receives a continuous forward bill ejecting movement, these feeding devices being ineffective during the winding on of the bill which is brought about entirely through the holding action of the clamp on the platen. On completing one line of writing, the platen may be line-spaced so as to advance the writ ing to the next line and so on until the forms are completely written. (hereafter the handle is actuated to continuously rotate the platen forward and eject the multiform bill sheet, the carbon at the same time being rewound on its holder. The operation above outlined is repeated for each multiple bill sheet.

It has been found in practice that the chief problem in controlling multiple bill sheets a of the type herein used, together with a reproducing sheet, arises from the difiiculty of obtaining accurate, smooth and uninterrupted feeding, and retraction of the sheets. I have provided various means for insuring such feeding and retraction, some of which may be briefly referred to this point as follows: Means are provided for preventing the actuation of the bill mechanism mounted on the carriage of the typewrit-ing machine unless it is in exact register or proper relationship with the magazine or supply holder which is mounted on the stand or stationary frame. The clamp on the platen is caused to close with a snap so as promptly to grip the ends of the bill sheet and carbon sheet before the rotation of the platen is begun. In order to compensate for the variation of diameter between the carbon supply roll holder as the carbon paper winds elf it, and the platen, as the bill sheet and carbon. paper wind on it, and vice versa', a spring connection or take-up is provided in the gear connection between the carbon roll holder and the actuating handle. The line space detent is automatically thrown out of the line spacing ratchet wheel at the beginning of the continuous backward rotation of the platcn, and is automatically restored to operative position when the bill sheet has been completely wound into place on the platen. Thereafter the line space detent remains effective until the line spacing of the bill is completed and the handle is actuated to eject the written bills, when the detent is again automatically thrown out so that during the ejecting operation, the detent is ineffective, thus permitting a free ejecting movement of the platen. Positive paper feeding means are provided to assist the ejection or winding off of the bill, coupled with devices for preventing such feeding means from interfering with the windin on of the bill under the pull of the paper clamp. Means are provided for preventing the operation of the multiple bill mechanism unless a work sheet is clamped in place for winding on.

All of these means and devices cooperate to insure the proper opera Lion of the mechanism and to produce a smooth accurate control of the bill and. carbon sheets with a minimum of effort and also with the practical elimination of the danger of spiraling or inaccurate feeding, which is fatal in this style of work. Other features of the construction will be referred to in the following detailed description.

As shown in Fig. 1 the magazine or holder 1 which. is preferably made of sheet metal, is n'ovided with cut-outs, and is in what may be termed skeleton form for the sake of lightness. The magazine ha s a top cover 2 hinged at S at the rear and has a front wall consisting oftwo plates l between which is left a Vertical central opening through which the operator may grasp the forms one at a time and withdraw them from the top of the magazine, the loosely hinged cover yielding or bein lifted for the purpose. The upright side portions 5 are formed with vertical guide slots 5 which receive the end portions of a metal bar 6 which serves as a weight to rest on the pile or stack of folded multiple bill forms 7 within the magazine.

It will be understood that the rod may yield or mo vc upward in guide slots whenever a bill sheet 7 is withdrawn from the magazine. Knobs or blocks 8, secured to the projecting end portions of the rod 6, prevent its accidental withdrawal. T he bottom of the magazinc has secured to it near its ends a pair of clamping blocks 9 which a re secured. by screws 10 to a cross bar 11. This provides for a bodily tilting adjustnientof the magazine as well as an adjustment of it along the supporting rod 11. Said rod is mounted in clamping blocks 12 held in their position of vertical adjustment by clamping screws 13 to a pair of uprights or standards 14 that rise from the rear portion of a frame or stand 15 on which the typewriting machine is supported. This stand may be of ordinary construction but the uprights 1% have been added 7 that the magazine is adjustable sidewise, may

be given a tilting adjustment around the bar 11 and receive a bodily up-anddown adjustment on the uprights 14:. The frame or stand 15 is provided with cross rods of which the forward one 16 is shown, said cross rod being provided with sockets 17 to receive the feet 18 of the typewriting'machine. The

main frame of said machine comprises a base portion 19 from which rise-posts 20 supporting a top plate 21. Rising from. the topplate, as shown in Figs. 1, 2 and 5, are front and rear lugs 22 and 23 to which are screwed stationary guide rails or track ways 2% and 25. These track ways are oppositely grooved and receive antifriction rollers 26 which also coope crate with the front and rear bars 27 and 28 of a carriage truck which further comprises right and left-hand sidebars numbered respectively 29 and 30. A bracket arm 31 secured to the top of the truck at its right-hand rear corner is connected by a band or strap 3 f with the usual carria e motor or s rin drum 32 whereby the traveling carriage, comprising the truck 2730 together with the various parts mounted thereon, is constantly urged leftward along the trackways 2-iand 25. The parts ofthe typewriting machine thus far described are common to the No. 20 Remington typewriter. i i

Incarrying out my invention I provide a new style or construction of platen carried paper clamp yalso a new style of papertable or support; a carbon roll holder; work sheet ejecting means and other devices and parts for controlling these elements, all mounted. on the truck or carriage, To provide mountings for these parts, supplementary end plates are mounted on the carriage truck. The right and loft-hand end plates numbered re spectively 33 and 34 are secured respectively to the outer face of the end bars 29 and by means of screws and dowel pins 35 (Figs. 1, 2 and The platen, indicated as a whole by the reference numeral 36, is in the form of a hollow shell or tube preferably made of aluminum, Said platen, as best shown in Figs. 3 and 5, comprises a tubular body portion 37 to which are secured heads or end pieces, the right-hand head being numbered 38 and the left-hand head 39. These heads are reduced at their inner ends to fit inside the tube 37 and are secured in place by screws The heads 38 and 39 are provided respectively withoutwardly extending hub portions 41 and 42 which are bored out to receive a platen shaft or axle 43, the hub 42 being se cured to said shaft by a screw l2; At its right-hand end portion, the axle bears in an enlargement or hub 44 which is fixed in the end plate 33. The left-hand end portion of the axle 4L3 bears in an enlargement or hub 45 secured in the end plate 34. The portion of the axle projecting leftward beyond the bearing 4E5 carries a finger wheel d6 of ordinary construction for turning the platen by hand, which wheel is secured in place by set screws 47. The outer end portion of the hub 42 is reduced in diameter and has suitably secured to it a gear wheel 48 for positively con necting the platen. with paper feeding devices hereinafter described. The hub portion ll of the right-hand platen'head is extended outward and formed with teeth 49 to provide a pinion that inter-meshes with platen driving. mechanism hereinafter described.

Driven or forced on the pinion so as to have a tight fit therewith'is a flanged hub or bearing el ment 50 to which is fixed a line spacing ratchet wheel 51, the wheel 51 and the part 50 being secured together and acting as a unitary member, which in turn is fast on the hub d1, a9 and consequently rigid 'ith the platen 36. The flanged portion 52 of the ratchet wheel member 50, 51 provides a bearingfor thehub portion 53 of a pawl carrier the pawl carrying member 53, 5% being unitary and adapted to turn freely on the flange52. At its lower end the pawl carrier 54;, carries an outwardly projecting pin 55 over which is hooked a spring 56, which at its rear end is anchored to a pin 57 projecting from a bracket 58 which is secured by a screw 59 to the under face of the end bar 29, Figs.

2, 3 and 6. This spring assists in restoring the line space train to normal position after operation.

Referring to Figs; 1, 2, 5, 6 and 7, the pawl carrier 54 has pivoted to its upward extension at 60 a line spacing pawl 61 of ordinary construction, which is adapted to coact with the ratchet wheel 51; Said pawl is connected y a forwardly extending link 62 with the long arm of a horizontally disposed bell crank 63 mounted on a screw pivot 6a secured to the end bar 29. The other and shorter arm of the bell crank 63 has connected to it the righthand end of a link 65 which extends leftward along the carriage and is connected at its lefthand end with the rearwardly extending arm 66 of a line spacing handle member or lever which further comprises a hub portion 67 and a forwardly extending arm or handle portion 68, terminating in a finger piece or handle proper 69. The hub 67 bears rotatablyon a pivot 76 upstanding from the lefthand forward corner of the carriage truck. Surrounding thev pivot 64, and connected to the bell-crank 63, is a restoring spring 71. The described construction comprising the train beginning with the line spacing handle 69 and terminating in the pawl 61 is the ordinary left-hand line spacing construction of the Remington machine. It will be understood that when the handle 69 is actuated or pressed rightward it will actuate the pawl 61, causing it to cooperate with theratchet wheel 51 to turn the platen 36 in forward or line spacing direction through a unit of line space distances, and that thereafter continued pressure on the l1ne-spac1ng handle will operate to restore the carriage and the parts mounted thereon from left to right. Cooperating with the ratchet wheel 51 is a roll detent 72 which is mounted at the forward end of a spring arm 73 that extends rearward and is secured by a screw 74: to a projection 31 that is integral with the bracket 31.. The spring mounted roll-detent cooperates with the line space ratchet wheel to maintain the platen in predetermined positions after line spacing operations and to hold the platen when it is not under actuation.

In addition to the mechanism just described for turning the platen through line space distances, mean are provided for turning the platen continuously through a plurality of revolutions, said means comprising speedmultiplying mechanism, next to be described. Intermeshing with the pinion 41-9 is adriving gear wheel of comparatively large diameter, which is illlustrated in Figs. 1, 2 and 3, and which is of ordinary construction, comprising a rim provided with spur gear teeth 75, radial spokes 76 and a hub portion 77. Said hub extends outward and bears at its outer end against a circumferential enlargement on a supporting sleeve or hub 78 which is riveted or otherwise fixed to the end plate 33. ()n the outwardly extending portion. of the hub 7 T is mounted a stop member which is in the form of a split collar '79 fixedly secured to the hub by a clamp screw 80. Diametrically opposite to the split in the collar there is provided a radial extension 81 carrying an outwardly projcctinglug or pin 82, which is zlClfiPtOtl, at the end of the forward turning movement of the wheel, to contact with a stop lever 88 (Fig. 6). The lever 83 is pivoted on a fixed pivot 8ft and under the action of the stop is pressed against a pin stop 85 fixed to and projecting inward from the plate so as to positively limit the turning of the gear wheel, the platen and connected parts. The hub or collar 78 is bored out to receive a stub shaft 86. As best shown in Fig. 3, said shaft at its inner end terminates in an enlargement 87 which has a reduced extreme end portion 88, the enlargement 87 thus being in the nature of a flange. Fit-ted over the flange or enlargement 87 is a split collar 89, which, as will be understood from Fig. 7, is secured rigidly in place relatively to the shaft 86-88 by a clamping screw 90. The collar 89 is provided with two radially extending projections 91 and spaced apart and providing supports for adjustable screw stops or abutments 93 and 91, said stops bein g held in adjusted positions by lock nuts 95. The oppositely facing ends or points of the screw stops are adapted to coact with a stop pin 96 projecting inward from one of the spokes 7 6 of the gear wheel or driver 7 5-7 7 A coiled spring 97, anchored at one end to said gear wheel or driving member and se cured at its opposite end to a pin 98 on the collar 89, tends constantly to turn said collar and the stub shaft on which it is mounted in counter-clockwise direction, when Viewed from the right, and to maintain the screw stop 93 in contact with stop pin 96. The construction is such that if the shaft 86-88 is turned in clockwise direction there will be a lost motion between it and the driving gear wheel 77, the extent of which is measured by the distance between the stop 94 and the pin 96. In other words, the turning of the shaft will not affect the gear wheel until the screw stop 94 contacts with the stop 96. For the purpose of actuating the stub shaft 8688 a crank member or handle is provided comprising a crank arm 99, a hub 100, and a handle proper or finger piece 101. The hub is fitted over the projecting portion of the shaft 86, outside the end plate 83, and is sccured to the shaft by a cross pin 102. It will be understood that when the handle 101 is turned, the shaft will be rotated, communicating movement to the collar 89, and thence through the lost motion connection to the driver or gear wheel 7577 and connected parts, thus turning the platen through the pinion 4-9 in a direction opposite to that in which the. handle 191 is actuated. The stop devices, including the coacting parts 82, 83 and 85, will limit the turning movement of the gear wheel and platen when the platen is being turned to wind on a work sheet. To limit turning movement in the opposite direction there provided a device 103, which is mounted on the inner face of a disk or circular plate 10l. Said device 103 is preferably in the form of a roll, which is adapted to rotate on a bearing pin 105 fixed to and projecting leftward from the left-hand or inner face of said disk 104. The disk is mounted on the inner end of the shaft )ortion 88 and is held in fixed relationship with said shaft by a pin 106 which is fixed in the flange 87 and projects leftward therefrom, said pin engaging in a hole 107 in the disk 10 1, thereby fixing the relationship between the disk and the device 108 relatively to said shaft. Leftward displacement of the disk prevented by a plate or arm 108 which clamped against the end portion of the shaft part 88 by a clamping screw 109 having a large head, the construction being such that suflicient friction is generated to prevent accidental displacement of the arm 108. Said arm near its outer end carries an actuating pin 110 which cooperates with paper feeding devices as hereinafter described.

Although they do not logically enter into the description at this point it may be well to take up and describe the otl er parts mounted on the shaft member 86-88 and which are disposed betwen the disk 104: and the split throwing into and out of use the line space detent roll 72, thereby lessening friction and promoting smoothness and ease of the continuous 13 11111119; movements of the platen. The circular plates 111 and 112 are best shown in Figs. 1, 2, 3, 6, 7 and 8. The right-hand cam plate 111 is provided with an enlargement or hub portion 113 which is bored out to fit over-the shaft part 88. Said cam plate I is formed with. a circular series of holes 11 1,

113 of the plate 111, and hilt l2 there being ten of such holes in the present instance. The holes are adapted to engage with the pin 106, the construction being such that the plate 111 is thus adapted to be set in fixed relationship with the shaft and the parts attached thereto in any one of a number of predetermined relationships. The outer face or periphery of the plate 111 is cut away or depressec, as indicated at 115. The depression having a curved bottom face struck from the center of rotation of the said plate, and the end portions being inclined as shown; The circular plate 111 is also formed with an arcuate slotcomprising a narrow'portion 116 out all the way through the plate and also with'a wider shallow depression 117 out part way through. The double slot 116, 117 receives a pair of adjustable members 118 which are independently slidahle in the slot-way and serve as nuts for headed screws or stop members 119. T he nuts 118'are of a width to seat or fit slidably in the shallow depression 117, thus being: housed so as not to project outside the righthand face of the plate 111. The heads of the screws 119 are wider than the narrow portion 116 of the slot, the construction being such that the screws and their cooperating nuts cannot he accidentally displaced from the suppoitinoplate or disk, although they are free to he slid lengthwise of the slotway into various adjusted positions when the screws are loosened. The heads of the screws project leitward into a slotway 120, formed in the other disk or plate 112. The slotway 120 is adapted to register with the slotway 116, and is of substantially the same length. I The heads of the screws projecting into this slot 120 serve in effect as stops, and the construction such that there is provided alost motion connection between the two disks or plates 11.1 and 112, the ex tent of which lost motion is variable according as the stops are set close to or further from each other. The purnoseof this construction will be subsequently explained. At this point it need only e said that the plate 112 is cut out so as to fit rotat bly on the hub the plate 112 is formed with a depression or V-shaped notch 121. the lost motion connection described affordino' vari on in relationship between the notch 121' and the depression 115 in the plate 111. 'At one of its ends the V- Y shaped notch terminates in an outward pro jection or tit 122. It will be understood that by removing the screw 109, the arm 108 and the disk 10% may be withdrawn from the shaft, thus permitting the removal of the two plates 111 and 112. The plate or disk 111 may be reset by bringing the desired hole 107 into engagement with the interlocking pin 106. To facilitate adjustments of the cam plate 111, which will depend on the number of forms on the part-mular bill sheets that are to be employed numbers 1 to 9 may be stamped opposite the corresponding holes 107, in accordance with whether one, twoor'three or more forms are printed on the particular bill sheets in hand. Also, the screw stops 119 may be adjusted in accordance with the number of lines to be written on each form or blank on the bill. With the parts replaced, a tightening of the screw 109 will hold them in proper relationship. It may be said at this point that the extent of sweep or continuous turning movement of the platen under the actuation of the handle 101,'may be limited by varying the relationship between the device 103 and the stop 82, such variation being effected by loosening the clamping screw 80 and turning the split collar 79 so as to vary the circumferential positions of the stop 82 relatively to the device 103. 'This perhaps will be best understood from a consideration of Fig. 6. Preferably. the driver or gear wheel 75-77 is provided with a circular shaped guard or cover plate 123 which is made of sheet metal and is provided with a flange to overlie the periphery of the wheel. The cover plate is provided with. enlargements or bosses 124: which receive headed screws 125 whereby the c overplate secured to the sideplate 33 of the carriage frame. The coverplate disposed inside the plate 83 and spaced leftward therefrom by'the bosses 12-1 so that said cover-plateis brought into the vertical plane of the gear wheel which it covers.

Referring now to the automatic paper clamp which is mounted on the platen, and having reference to Figs. 3, 5, 7 and 8, the tubular platen bodyv 37 is cast with an in wardly projecting rib-like part or enlargement 37 in which is cut a slot-way 126 which extends longitudinally of the platen and receives the bar-like'or body portion 127 of the clamp which is adapted to slide radia ly in and outof the slot-way 126. Said clamp further comprises a clamping flange orlip 128 which is formed integrally with the body or bar 127 and projects rearwardat right angles from said body outside the platen surface, to which the outer face of the lip is curved to conform. The inside or working face of the lip 128 is straight or flat and fits against the corresponding flat surface of an under-cut or depression 129 in the tube 37. The construction is such that when the clamp is closed it hugs the platen tightly and provides an uninterrupted siuface, as will be clearly apparent from Fig. 5. Of course, when the paper is inserted between the coacting flat clamping face 129 and. the under face of the lip 128, the clamp will be projected outward slightly away from the platen surface, but not sufiiciently to alter materially the regular continuity of the surface and the smoothness of the rotation of the platen will not be affected. Outside the platen heads the bar portion 127 is provided at its lower ends with outward projections or lugs 130 which are somewhat elongated and are rounded off so as to lit rotatively in round openings 131 formed in arms 132 which are pivoted at 133 to the associate platen heads. Nuts 134 threaded on the pivots 133 prevent outward displacement of the arms 132. Each arm carries an outwardly projecting pin over which is hooked a draw-spring 136 anchored at its opposite end at 137 to the associate platen head. The constructi i n is such that the springs acting on arms 132 and, through the pin-and-hole connections 130, 131, on the clamp 127, 128, tend constantly to maintain the clamp pressed toward and engaged with the platen, as shown in Figs. 5 and 7. i

The clamp is automatically controlled, so that it is opened to receive the work sheet at the end of the rearward work-sheet ejecting movement of the handle 101, and thereafter is automatically snapped shut by the preliminary forward actuation of the handle 101, so as to clamp the paper to the platen before the winding-on operation starts. The automatic controlling means comprises roll 138 pivoted at 139 to the upper portion of the right-hand arm 132, said roll 138 being adapted to cooperate with a lip 140 inturned from the upper end of an arm 141 pivoted at 142 to the right-hand platen head 38. Through the roll 138 and the lip 140 the pressure of the spring 136 will be transmitted to the arm 141 and normally will maintain said arm in contact with a square stop pin 143 which projects rightward from the platen head 38. In order to open the clamp, the upper rear end of' the arm 141 is adapted to contact with a stop 144, which is formed by a forward projection at the lower end of a cam and stop member 145'. This member, as shown in Figs. 3, 6, 7 and 8, is preferably formed of a single piece of sheet metal- Its lower end portion is bent in the shape of a U so as to provide a yoke comprising a cross portion 146 and an upwardly bent portion 147, which is parallel with the body portion of the member 145, but is disposed some distance to the right of it. This portion 147 terminates at its rear in a stop face 148. The portion 147 and the opposite portion of the body of the member 145 are perforated to fit over and bear rotatably on a stub shaft or rod 149, which at its right-hand end is secured to the end plate 33 by a screw 150. Said shaft thence extends leftward and its inner end bears in an angular bracket 151 V which is secured to the rear bar 28 of the in a hook-like head 145 which is formed with an open-mouthed cam-slot 154 terminating in a dwell portion 155, the cam slot and the dwell fitting over and being adapted to cooperate with the roll or controlling device 103. The member 145 is adapted to be main- L tained in normal position by a coiled spring 156, the forward end of which is hooked over a lug 145 on the member 145, the rear end of said spring being anchored to a bracket 157 which is clamped by the screw 74 against the upper face of the detent arm 73. The bracket 157 is provided with a curled bearing portion 158 which is tapped to receive an adjustable screw stop 159. Said spring 156 tends constantly to maintain the stop face 148 in contact with the forward end of the screw stop 159. The member 145 has pivoted to it at 160 a spring latch 161 having a tail portion which is connected by a draw spring 162 to the lug 145". This spring tends constantly to maintain a lip 163 bent horizontally from the forward end of the latch in engagement with a shouldered edge 164 on the top of the part 144. The front portion of the latch 161 terminates in an incline or cam edge 165.

Under normal conditions the member 145 will be held in the position shown in Fig. 6 with the stop 148 engaged with the stop 159. In the course of the ejecting rotation of the platen to unwind a written work sheet, the roll or stop device 103 will be brought into engagement with the forward edge of the cam slot 154 and will swing the member 145 forward about its pivot 149 so as to bring the 3 cam edge 165 and also the stop 153 into the path of the stop 143, which is being rotated in clockwise direction with the platen as the parts are viewed in Fig. 8. As the ejecting movement of the platen continues, the upper corner of the stop 143 will engage with the edge 165 and will swing the latch 161 up above its pivot 160 against the pull of the spring 162 until the latch rests on the top of the stop pin 143. As soon as the pin 143 clears or passes the latch, said latch will be snapped down by its spring over the front side of the pin which at this time will have engaged at its rear face with the stop 153.

As will be apparent in Figs. 7 and 8, the parts ing engagement between the square stop pin 143 on the one hand and the member 1 15 and latch 161 on the other hand. Meanwhile, as the pin 1413 starts to engage with the cam edge 165 the arm 141 will engage at its upper rear end with the stop 14% so that as the turning movement of the platen continues the arm 141 will be forced forward about'its pivot 142,

causing the hp 140, acting on the roll 138, to swing the arm'132 forward about its pivot 133 and thus force the clamp 127, 128 outward in its bearing. a This operation, it will be understood, is inopposition to the springs 136 at bothends of the platen'. The parts areso proportioned and'timed that after the member 145 has been cammed forward to operative position by the coaction'of the roll 103 with the cam slot154, the roll will-enter the dwell 155, so that the member 145 will remain stationary during the opening of the clamp and the operation of the latch 161 including its snapping down in front of the pin 143. The parts at this time will be in the position illustrated in Fig. 8. From this figure, it will be understood tl at both the disk 104., carrying the roll 103, and also the platenwere rotated from the handle 101, the platen through its connection with the driving gear.

.Vith the clamp open, asshown'in Fig. 8, the paper may be inserted as hereinafter more particularly described and the mechanism is then ready to have the clamp closed in or der to grip the paper to the platen, which thereafter is to be rotated in counter-clockwise direction, viewed from the right, in order to wind the paper thereon. As has been stated, it is necessary to clamp the paper promptly before the platen begins to move and the mechanism described is effective for this purpose, as will be understood from the following. The paper having been inserted, pressure against the operative handle 101 is reversed, that is, it is pulled in clockwise direction, thus causing the roll 103 to move down out of the dwell 155, and act'against the rear or under edge of the cam slot 154:, swinging the member 145 upward and rearward about its pivot so as to lift thestop l l l out of engagement with the arm 141. Until this operation is-completed, the platen will be held rigidly against the movement by the cooperation of the pin 143 with latch 161 and the stop 153. It will be apparentthat as soonas the stop 14% clears the arm 141, the clamp will be snapped or forced down into clamping engagement by the action of its springs 136 into the position shown in Fig. 7. From this figure, it will be seen that this clamping action takes place before the platen has been released by the disengagement of the latch 161 and the stop 153 from the pin 143,

. these parts operating in effect like clutching jaws onthe' pin. It will also be apparent from an examination of FIGS. 7 and 8 that this preliminary clamping operation is permitted to take place prior to any moving force being applied to the platen because of the lost motion connection between the devices 93 and 9 1 and the pin 95. Positive rotary movement of the platen to wind on the paper will not take place until the join 94 f has moved downward into contact with the pin 96, thereby picking up the driver or gear wheel and actuating it to rotate the platen.

Devices are provided to cooperate with the circular plates 111 and 112 to control the automatic throwing and on of the linespace detent-roll 72, during the back and forth rotary movements of the platen. Said devices comprise an arm or lever member 1% Figs. 2, 3, 6 and 7) WAlCll is provided at its lower end portion with a U-shapcd 01- set or yoke comprising a cross portion 167 and an angular part 168 bent up parallel with the body portion of the arm 166. The part 168 and the body portion near its lower end are perforated to lit over the stub shaft 1&9 on which shaft the arm 160 rotatably hears, it being disposed between the end plate 33 and the yoke portion of the cam member as best shown in Fig. 3. The upper end portion of the arm 166 is off-set left-ward and at its upper end carries a pin 169 which provides a bearing for a roll 170, so disposed that it overlies the periphery of the plates 111 and 11.2 and is adapted to cooperate therewith. A pin 171 projects leftward from the arm 166 and underlies the spring arm 73,.

being so related to said arm that when the arm 166 is swung rearward about its pivot 149, the pin 171 will act against the under side of the arm 73 and will lift the detent roll 72out of engagement witn the ratchet wheel 51, as will be clear from 7. The pin 171 will be thus effective when the roll 170 is riding on the outer circular faces or peripheries of the plates 111 and 112. On the other hand, when the depressions 115 and 121 permit the roll 170 to move forward, this allows forward swing of the arm 166which will be pressed down by the spring action of the arm 7 3 on the pin 171. permitting the detent roll 7 2 to re-engage with the ratchet wheel 51.

The operation of the devices comprising the arm 166 and the disks or plates 111 and 112 may be briefly referred to. Normally at the start of the operation of winding on the bill sheet the roll 170 will be engaged with the peripheries of the plates 111 and 112, thus holding the detent 7 2 out of engagement and promoting the free rotation of the platen. This will be understood from a consideration of Figs. 2 and 7. As the platen nears the end of its winding-on operation, the tit 122 will be brought into engagement with the roll 170 and will hold back the plate 112 until said plate is picked up and forced to turn by the engagement of one of the stops 119 carried by the plate 111 with the neighboring end of the slot 120 in the plate 112; or in other words, until the lost motion between the two plates is taken up. Thereafter further turning movement will, force the roll 170 up over the tit l22and permit to drop down into engagement with the notch 1.21, thereby permitting the detent roll 72 to engage with its ratchet wheel 51. This operation takes place ilPlJlOXillllttlf J at the end of the forward or winding on movement of the platen under actuation of the handle 101. The position of the parts at this time is illustrated in Fig. 6. There-after as the lines are written on thebill and the platen is line spaced from line to line, the plate 112 will remain quiescent, the roll 1T0 remaining in the notch 121 and the detent 72 consequently acting on the ratchet wheel 51 to control the line space positions of the platen. It will be recalled, however, that during these line spacin movements, the plate 111 will be rotated and eventually the other stop 119 carried thereby will act against the end of the slot 129 to pick up the plate 112, forcing it to turn. As a result the roll 170 will be forced out of the notch 121 and caused to ride on the outer periphery of the two pl ates 111 and 112, thus automatically lifting and maintaining the detent 72 out of the ratchet wheel 51 so tiat the continuous retracting or unwinding movement of the platen under operation of the handle 101 will not be interfered with. As has been stated, the extent of the lost motion between the two plates 111 and 112 may be regulated by adjusting the stops 119 relatively to each other. From what has been said, it will be apparent that this regulation will depend on the number of lines to be written on each of the set of forms or blanks on the bill sheet. It will be seen that means are provided for automatically rendering the line space detent devices effective when the writing of the bill is to be begun, and for automatically rendering them ineffective when the writing has been completed, and that such means are adjustable to accord with the number of lines on the bill, or with the number of line-to-line spacing operations.

It will be apparent that during the winding-on of the bill sheet, it will be positively connected to the platen and caused to be wrapped around the same primarily through the paper clamp 127, 128. After the bill has been written, however, and it is desired to eject it rapidly, the clamp is of no assistance, and accordingly there have been provided feeding devices which are thrown into effective position and positively connected to the platen automatically when the platen approaches the end of the winding-on operation, so that the feeding devices may cooperate with the bill to advance it during line spacing operations and also during the subsequent continuous ejecting operation. As shown in Figs. 1, 2, 6, 7 and 8, the paper feeding devices comprise knurled metal rolls 172 fixedly secured one near each end of a shaft 173 which extends longitudinally of the platen above the printing line, the rolls being so disposed as to cooperate with the face of the platen near its ends. The shaft 173 is mounted near its ends on a pair of downward curving arms 17 4 which at their lower ends are provided with outwardly extending collars 175 which fit over and are fixedly secured to a rock shaft 176 which bears at its ends in the plates 33 and 34: of the carriage frame. Crank arms 177 upstanding from the collars 17 are formed with holes through which are hooked the forward ends of draw springs 178. The rear end of the left hand spring is anchored to a pin 179 projecting inward from the sideplate 34, while the rear end of the right-hand spring 178 is anchored to an arm 58 integral with the bracket 58.

' The springs tend constantly to turn the shaft 176 in a direction which will press the feed rolls 172 into engagement with the surface of the platen. Mounted on the left-hand end of the shaft 173, outside the arm 17 1, is a pinion 180 which lies in the same fore-andaft plane as the gear 48 and is adapted to intermesh therewith when the feed rolls 172 engagewith the surface of the platen or the paper thereon. The construction is such that the feed roll shaft 173 is positively connected with the platen through the gear 48 and pinion 180, so that when the platen is turned, it will positively turn the feed or pressure rolls 172, causing them to coact to feed or advance the paper passing between them.

In order to lock the feed rolls 172 out of operation during the winding-on of the bill when they would be superfluous, means are provided comprising lugs 181 extending outward from the arms 17a and adapted to be engaged by hooks or arms 182 which extend rearward from and are secured to a rock shaft 183 that bears in angular brackets 184 secured by screws 185 to the front part of the carriage. A spring 183 coiled around the rock shaft and acting thereon, tends constantly to press the hooks or arms 182 downward. Secured to the right-hand arm 182 by screws 186 is an upstanding finger 187 which at its upper end portion is off-set to lie in the path of the pin 110.

The operation of the means for automatically controlling the paper feeding mechanism is as follows: When the clamp 127, 128 is open to receive the work sheet, as shown in Fig. 8, it will act against the feed rolls 172 to force them away from the surface of the platen and cause the hooks 182 to snap down over the lugs 181 which will operate to maintain the feed rolls in inoperative position during the subsequent winding-on of the bill.

As the end of this winding-on approaches, the actuating pin 110 will engage with the finger 187 and will force it upward and forward about its pivotal center 183, thereby lifting the locking hooks 182 and permitting the feed rolls 17 2 to be swung forward by the spring 17 8 into cooperative engagement with the platen at the same time that the pinion 180 engages the gear 18. The parts are so timed that this operation takes place approximately at the end of the windmg-on operation.

Gne of what may be called the safety devices incorporated in the machine compr ses means for preventing the billing mechanism from being operated in direction to wind on a bill sheet unless such bill sheet has been actually clamped in place on the platen. The means aforesaid comprise, as shown in Figs. 1, 2', 3, and 5, an arm 188 provided with a hub 189 which i ts over and bears on a rod or shaft 190, said shaft being secured in a tubular support or nut-like member 191 which cooperates with a screw 192 to maintain the parts in fixed relation ship with the end plate 34. p The rod projects inward from the end plate and underlies the platen near its left-hand end. A collar 193 is secured to the right-hand end of the rod 190 and has anchored to it a wire spring 194 which is coiled around the rod and is conn cted to the arm 188, tending constantly to draw the forward end of said arm upward. Said forward end terminates in a tooth or pawl 188 which registers with a depression 195 formed in the left-hand end por- The outer or free I tion of the platen surface. end cf the arm 188 carries a pin 196 on which is rotatably meunt-ed a roller 196 which is ac apted to ride on the surface of the platen, it being constantly pressed there-against by the spring 194. The roller 196 is also adapted to engage with the depression 195, and the construction is such that if there is no paper in the machine, the roller riding down in the depression will permit the pawl or detent tooth 188 to engage with the edge of said depression after the platen has been only slightly turned in winding-on direction, such engagement positively arresting the platen and preventing operation of the mechanism. It willbe further understood that when a bill sheet has been clamped to the platen, it will bridge or cover over the depression 195 therein so that the roller196 will not drop. Thus the pawl will be held out of engagement with said depression when the platen is turned, and will be ineffective to lock the mechanism against operation. V

Referring now to the means for carrying and controlling the reproducing material, preferably carbon paper, such means are best shown in Figs. 2, 3, 4, 5 and 7. v

The reproducing material or carbon paper, indicated by the numeral 197, is ordinarily supplied in roll form, being wound on a pasteboard core or tube 198. There is provided a tubular holder or carrier for the roll of carbon, said carrier or holder comprising a hollow tube or cylindrical body portion 199, within the ends of which are received heads or end pieces. The right-hand head 200 fits within the tube and is suitably fixed in place, it being formed with a hub portion 201 to fit over the support or hearing for the roll holder, and the flanged end of the head 200 being provided with a series of teeth 202, forming a crown gear wheel.

Projecting inward from the head 200 is an extension 203 roundcc at its end to facilitate the fitting over it of the pasteboard core 198 and preferably formed with a number of longitudinally extending kerfs or slits to promote resiliency, so that the core 198 will fric tionally engage with the projection 203, and will be held against accidental turning movements thereon. The lef"-hand end of the tubular body 199 is provided with a detachable head or end piece designated as a whole by the numeral 201. Said end piece comprises a head proper 2055 having secured to its periphery a knurled ring or annulus 206. The head proper has integral with it an inwardly extending flanged portion 205*. Also integral with the head is an inwardly ext-ending hub portion 207, over which is fitted and securely held an additional extension 208 which is likewise formed with 1ongitudinal kerfs indicated at 209, thus dividing the extension into a number of resilient fingers which are curved at their free ends to provide a nose so to engage readily with the core 198 and hold it frictionally. The detachable head 20 1 is adapted to engage with the tube 199 by a bayonet joint, and a latch is provided for preventing the joint from slipping accidentally. Said latch is in the form of a curved or arcuate spring arm 210 securedby a screw 211 to the inner face of the flanged portion of the head 205. The free end portion of the spring arm 210 projects outward through a slot 212 formed in the flange 205, and this outwardly projecting portion is adapted to be drawn inward by hand below the surfaceof the flange 205 by means of a laterally extending finger piece 210*, which is integral with the spring arm 210 and extends through a hole or slot in the vertical outer face of the head proper 205. The bayonet joint comprises a right angled or bayonet slot 213 formed in the left-hand end portion of thetube 199, said slot cooperating with a screw or stop 214 secured in the fianged portion of the head 205 s The construction is such that when the head and the tube are interlocked, as shown in Fig. 3, the spring arm or latch 210 projecting upward through the slot 213 will prevent relative rotation of the parts such as would bring the screw 214 opposite the outwardly extending or mouth portion of the slot, so that the head could be detached. In order that separation of the parts may be accomplished, it is first necessary to depress or withdraw the latch by pressing down on the finger piece 210 Preferably the spring latch 210 is covered at the right by means of a disk 215 which is suitably secured to the inner end portion of the flange 205. The knurled annulus 206 affords a convenient means for turning the head 204 on the tube 199 so as to connect and disconnect them. It will be understood that when the roll holder has been detached from the machine as hereinafter explained, it is only necessary to remove the head 204 to enable a roll of carbon to be inserted and its core 198 fitted over the projection 203 at the right, after which the head 20 1 may be replaced, the extension 208 fitting inside the core at the left, the core being thus suitably supported and the carbon roll housed inside the hollow cylindrical holder. Said holder is formed longitudinally with a slot-way indicated at 216 open at the left, and of course in inserting the roll of carbon, care must be taken first to unwind sufficient of it to enable the unwound portion to pass through the slot and be moved along rightward with the carbon roll as it is mounted in place in the holder, leaving the loose free end outside of the slot 216. The cylindrical carbon holder is made preferably of aluminum and is of substantially the same diameter as the platen. It will be understood, of course, that the supply roll wound on one of the core pieces 198 is sufficient to write a large number of bill sheets. In making use of the device initially, it is intended that only an amount of carbon paper 197 be unwound from the roll and drawn outward through the slotway 216, which will correspond in length with the length of one of the multiple bill sheets 7, allowing for the distance from the roller or carrier to the platen. This free or unwound part of the carbon paper is wound on the outside of the tubular body 199 of the holder, and it will be understood that the number of winds or wraps of carbon thereon correspond with the number of winds or wraps of the bill sheet on the platen. From what follows it will be seen that the carbon is wound on and off its carrier or holder in correspondence with the winding on and off of a bill sheet on the platen, so that the two sheets may be interleaved, enabling the car bon to reproduce impressions on all of the bill forms underlying the outermost form or wrap. It is the purpose of course to use the same unwound portion of the carbon until it is so far exhausted that it will not adequately oflset on the bill sheet so as to make clear copies. lVhen thus exhausted it is only nec essary to withdraw through the slot 216 a fresh supply of'carbon paper, tearing off and discarding the used portion. By this construction the carbon carrying roller carrying the outside portion of the carbon that is in use is always maintained of substantially the same diameter as the platen, whatever the size of the roll of carbon inside the holder or roller may be. The carbon roll holder is disposed above and at the rear of the platen, being mounted on a shaft 217 which is sup ported at its ends in the side plates 33 and 3 1. At its right-hand end the shaft 217 is adapted to bear in a bearing hub or block 218 which is riveted or otherwise secured in the plate 33. In order, however, that the car bon roll holder may be readily withdrawn from the machine, it is necessary to provide a different form of support for the left-hand end portion of the shaft 217. To this end the bearing hub 219 at the left is secured in a detachable circular plate or disk 220 which is shouldered, as indicated at 221, to fit in a circular hole or opening 222 formed in the plate 34. The disk 220 is provided with a number, four in the present case, of round holes 223 whereby the disk may be conveniently grasped and manipulated. Secured to the inner face of the disk as by rivets 22ais a strap 225 projecting at its ends slightly beyond the shouldered portion 221 of the disk, and these projecting portions are adapted to cooperate with the inner wall of the plate 3 1 so as to interlock the disk 220 therewith and hold it firmly in place. Upenings or recesses 226 diametrically opposite each. other are provided opening into the hole 222, and it will be understood that when the disk 220 is rotated so as to bring the strap 225 in line or register with these openings 226, the disk may be pulled outward and dc tached from the plate 84, this removal of course carrying with it the bearing 219. The opening 222 is of suflicient diameter to enable the carbon holder to be withdrawn through it. In order to hold the holder and the detachable bearing, comprising the hearing proper 219 and the disk 220, in proper relationship, said bearing is formed with a circular groove indicated at 227 into which is adapted to fit a curved plate 228 which is secured by screws 229 to the head 205 in such a way as to be offset slightly to the left of the outer face of said head and so as to register with and engage slidably in the groove 227. It will be understood that when the circular plate is engaged with the groove,

the two parts are properly in register and connected together and may be applied to and removed from the bearing shaft 217 at one operation.

As has been stated, the platen and the carbon holder or rotary carrier are of the same diameter. to the main driving gear 7 5 and 77 by the same sized pinion as employed for the platen connection, and consequently the holder is driven or rotated at the same speed as the platen. However, at the start of the windfill.

The carbon holder is connected lei) ing-on operation the platen isbare and the holder is increased in diameter by thethicknesses of carbon paper wound on the outside of the tube 199.- As acconsequence, as the diameter of the platen increases through the winding-on of the paper and interleaved carbon, and the diameter of the carbon holder lessens by the winding off of the carbon paper, there would occur a pull on the carbon between the holder and the platen, which would tend either to act as a drag or brake on the mechanism, or might result in rending or tearing the carbon. Tocavoid this defect, there is provided a yielding connection between the carbon holder and itsconnection with the driving gear. Said connection comprises a pawl carrying member 230 which is fitted loosely over the shaft 217 at the right of the carbon holder and is provided at diametrically opposite ends with leftwardly ex: tending teeth or pawls 231 which are adapted to engage between the teeth of the crown gear wheel 202. Said pawl carrier is con: stantly urged leftward into engaging position by a spring 232coiled around the shaft 217. The leftward effect of the spring is limited by a collar 23.3 fast onthe shaft 217 and interposed between the hub 201 and the pawl carrier 230. The spring 232 is interposed between the pawl carrier and a. spring drum or box 234 which is slidably mounted on the shaft and comprises an inner hub 235 and an'outer flange 236, Fitted over and bearing 'rotatably on the hub 235 as well as partly on the shaft'217, is a pinion 237. ln side the drum 23a is arranged a coiled band spring 238 one end of which is connectedto the flange 236 of the drum, and the opposite or inner end to the pinion 237. This spring tends constantly to turn the pinion forward relatively to the drum and to maintain a radial stop pin 2.39 on the pinion in contact with a stop pin 240 projecting radially inward from the inside of the flange 236 of the drum or housing 234:. In other words, the driving pinion is thus provided with a yielding or resilient connection with the drum 234. The drum is connected with the pawl carrier 230 so as to communicate motion through it to the carbon holder by mean of a pair ofleftwardly projecting pins 241 which are secured diametrically opposite each other to the lefthand end of the drum 23d and engages loosely in slots 2&2 in the pawl carrier230. Heads 2-13 on the left ends of the pins 241 are disposed to the left of the pawl member 230, these heads being of sufficient diameter to prevent disconnection of the pins from the pawl carrier while permitting some freedom of longitudinal movement of the pawl carrier and also relative movement betweenthe drum 23 i and the pawl carrier lengthwise of the shaft 217. A flan ed ring24l is driven on the pinion 237 to the right of the spring 238 and provides a suitable closure for the righthand end of the spring drum 2.34. When the parts are assembled in place, as will be understood from Fig. 4;, the right-hand end of the pinion 237 abuts against the stationary hearing hub 218, thus in effect causing the spring 232 to react against the pawl member 230 and maintain its teeth engaged with the gear teeth 202. he shaft 217 at this time is held against longitudinal movement by a screw stop 245 which is threaded into the hub 218 and coacts with a flange 246 on the shaft, said flange forming the right-hand side of a groove or depression 247 in the shaft, the construction being such that the shaft has endwise play equivalent to the width of the groove 24.7. lVith the parts positioned as shown in Fig 4, it will be understood that the pinion 237 intermeshes with the driving gear 7 5'77 (Fig. 2) and that motion will be transmitted to the carbon roll carrier from the driving gear by the train of mechanism as described.

When itis desired to release the/carbon roll holder to provide for a fresh supply of carbon, the left-hand projecting end of the shaft 217 is pushed rightward, causing the right-hand end of said shaft to project beyond the end plate 33 and exposing a narrow circumferential groove 2418 cut in said shaft near its right-hand end. As soon as the grooved part of the shaft isforced outside the end plate, it is engaged by a pivoted lever member or detent 249, Figs. 2, 3 and 1, so as to hold the shaft in its abnormal position.

The lever member 249 is pivoted on the outside of the end plate 33 and 250 and has a limited movement on said pivot equal in exten to th nla of n in 251 l l r l t c 1 y cu p. caiilec oy salc lever member in a slot 252 cut in the end plate and with which said pin engages. A flat spring 253 having an ear 254; secured by a screw to the inside of the end plate bears at its free end on the pin 251 tending constantly to press down the engaging end of the lever member 249, the construction being such that the lever member or detent will snap into the groove 248 as soon as it is exposed, thus locking the shaft 217. The for-. ward end nortion ofthe lever member is provided with a cam face 256 which is adapted to be engaged by pin 257 projecting inward from the handle arm 99, so that if the operator should neglect to release the detent, the pin will operate automatically to depress its front end and swing up its rear end during the initial stage of movement of the handle 101, thus automatically releasing the shaft -which will be ressed leftward by the spring 232 to reconnect the driving mechanism with the carbon roll holder. The purpose of pushing the shaft 217 rightward is to cause the collar 233 fixed thereto to act against the pawl carrier 230, pressing it rightward, compressing the spring 232,. and disconnecting the teeth 231 from the gear 202 so as to leavethe tached from the machine, the support or clip carrier i the pivotal center 26 -3.

carbon holder free to be rotated in order that a fresh supply of carbon may be drawn from the inside of the holder and wound on its outer surface.

In order to guide and feel or unwind the carbon paper smoothly off the outer surface of the roll holder, a feed roll mechanism is provided which as best shown in Figs. 2, l, 5 and 7, comprises a roller proper made of yielding material and mountal on a shaft which is provided v T. flanges 260 to confine the roll 258 .ll place. The outer end iortions of the shaft bear detacl'iably in clips 261, which are formed the en rtions of a unitary sheet metal support 2 2 i has a limited rotary movement on a pivot 263 riveted or otherwise secured to the lower central portion of a yoke 26-1 which yoke has secured to it by screws 26:") a curved clamping late 266 that embraces rod or shaft 267 caring at its ends in the end plates and 34-. By removing the screws 28:) the yoke may be separated from the bearing plate and decarrying with it 261, 2t 1 and the roll 258. The clip carrier 262 prevented from being detached from its pivot 263 by cross pin 268. Tnterposed between the clip carrier and the yoke 26-1 at opposite sides of the pivot are small bearing balls 269 which interseat in depressions formed oppositely in the two opposing para iese depressions being so shaped as to permit a slight movement of the clip carrier and feed roller 258 about This permits the roller to seat properly on or against the carhon roll holder to cause the parts to properly cooperate when the rol holder is turned to feed or advance the carbon paper. Spring pressure is transmitted to the roller 258 from the shaft 267 on which the yoke 262i is rigidlv secured by the screws 26% and clampingplate 266. This spring pressure is obtained from spring means cooperating with the lefthand end portion of the shaft. Figs. at and 7. Secured to the projecting left-hand end portion of the shaft 267 is a crank arm 270 (Fig. provided with a hub 271 fixed to the shaft by a screw 272. said screw terminating in a finger piece whereby the shaft may be partly rotated by hand. The lower end f the crank arm 270 has secured to it one end of a coiled spring 273 (Fig. l) the opposite end whereof is secured to a latch piece 27 4 pivoted to the outside of the end plate 3 1 at 27-1 and notched at 274t as shown in dotted lines in Fig. 7 to engage w' h a pin 275 on the crank arm to hold the sh. t and the can hon feed roller out of ope in when dethe sprin 273 sired. Ordinarily the ell 3t 4 is transmitted through the shaft 267 to the roller 258 to press it against the carbon roll holder or the carbon paper thereon.

The forward end portions of the bracket arms 151 (see Fig. 5) are twisted vertically and terminate in head-like portions 151 having inclined faces 276. Pivoted at 277 on the inner faces of the heads 151 are ears 278 bent down from the end portions of a guide plate 279 which rests on pins 280 projecting inward from the heads 151. The guide plate 279 serves to receive and support the free end portion of the carbon paper 197 as it passes downward and forward from between. the roll holder and the feed roll 258. The parts are so adjusted that when the carbon rewinds on the roll holder during the operation of the machine, the end portion of the carbon is left so that itwill lie in position to fall into or just back of the space between the clamp 128 and the coacting surface 129 when the clamp is opened to receive the work sheet. This will be best understood from a consideration of Fig. 5.

The work sheet 7 having been, as heretofore stated, withdrawn at its feeding-in end portion from the magazine 1 is led down to the platen over paper guiding devices which constitute in effect a chute and comprise an inclined sheet metal plate or table designated as a whole by the numeral 281 and shown in. Figs. 1 to 5. The body portion or plate 282 of the table is of a width to accommodate the sheets commonly employed in practice. Mounted on the upper face of the body or plate proper 282 are side guides or plates 288 of which the right-hand one has lugs 284 projecti'ng downward through cross slots 285 which hold the right-hand guide 283 in proper vertical position. Said guide is provided with horizontal. extensions 286 which receive clamping screws 287 that are adapted to slots in the plate 282 and afford adjustments of the right-hand plate 283 towards and away from the left-hand guide plate 283, so as to provide the correct width for the passage of the work sheet as it is guided downward. Said sheet in its downward course passes between. the upper face of the plate 282 and guide members designated as a whole each. by the numeral 288, said guide members being formed of sheet metal and being divided by vertical parallel cuts 289 into fingers 290 which at their lower ends are adapted to engage loosely in cross do ressions 291. The finger portions 290 are siown as riveted to the body portions, but it will be understood that if desired the parts 288 may be unitary. Secured to the upper curved portions of the bodies 288 and extending over and down behind the same are supplementary fingers 292 which press lightly against the face of the plate 282. The whole construction is designed to guide the clown-coming work sheet or form lightly and evenly over the table 281. So guided the lower end portion of the sheet will be brought into position to be engaged by the clamp 127, 128 when it is opened and in the position shown in Figs.

5 and 8. The table member 281 rests normally at its lower end on the inclined faces 27 6 of the brackets 151, 151*. The paper table as a whole is pivotally supported on the cross rod or shaft 267 and to this end is provided at its rear side with hearing blocks or projections 293 which terminate in outwardly extending hubs 294 (see Fig. l) which fit over said rod and over end pieces 295 which prevent lateral displacement of they paper table on its pivotal support. The end pieces 295 andhubs 294 are held rigidly united to turn on the shaft 267 by screws 295 Said table is normally held in operative position by means of detent members 296 rigidwith said end pieces and formed with notches 297 and 298 to accommodate detents 299 mounted at the ends of a rock shaft 300 pivoted in the end plates 33 and 34. Normally the detents 299 engage with the notches 297 holding the table in operative position. A coiled spring 301 2) holds the detents in engaging position. The right-hand detent 299 is provided with .a finger piece 302 whereby'the detents may be withdrawn from the notches 297, permitting the paper table to be thrown back about its pivotal axis, the detent notches 298 engaging with the detents to hold the paper table in its thrown-olf position, thus exposing the underlying mechanism. The rear sides of the notches 298 are so shaped that the paper table may be pulled forward to restore it to normal position without requiring any manipulation of the detents 299 through the controlling finger piece 302.

The paper table 281 also provides guiding devices for receiving the work sheet after it has been written and as it is fed off the platen during the continuous ejecting movement thereof. Said devices comprise the curved upper end portions 288 of the members 288 which act to receive the top-edge of the sheet as it is fed upward. The upwardly advancing edge of the sheet is guided to these curved portions 288 by guide plates 303 secured to the lower side edges of the plate 282 and extending inward therefrom, said plates 303 being off-set forward to provide a receiving opening indicated in Fig. 5 by the numoral 304C. Integral with the guide plates 303 are upwardly extending fingers 305 which are so shaped as when the upwardly advancing paper is receivedby the curved guides 288 and thence directed downward, it will be caught by these fingers 305 and directed downward to the root portions 306 thereof and thence again directed upward. It will be recalled that the work forms 7 are creased or folded crosswise between blanks. The receiving and guiding devices, comprising the parts 238 305 and 306 are so disposed and shaped that they will automatically fold the feeding-out work-sheet along these creases so that when it is released from the platen and discharged, it will lie within the receiving guides'and between the parts 288 and 305 resting on the fingers 290 in folded condition, enabling it to be convenientlyeremoved through the space between the lower v there would be an inevitable tendency to feed crookedly, resulting in the irregular winding-on that is commonly referred to as spi- I raling. The safety devices referred to are shown clearly in Figs. 1, 2, 3, 5 and 7. These comprise a cap 307 which fits loosely over the outwardly projecting boss 44 and is secured to and in fixed relationship with the outer end portion of the platen axle or shaft 13 by a shoulder screw 308. The shouldered portion of this screw is square or hexagonal and-fits in a corresponding hole in the cap, so that the cap is forced to rotate with the shaft as. The cap is formed with an integral radial extension or finger portion 309 which is adapted to coact with a notch 310 formed in the upper rear end portion of an arm 311 which extends forward outside the end plate 1 33 and is secured to the outwardly extending end portionof a short rock shaft 312 which extends inward through the end bar 29 and bears rotatably therein. Fixed to the inner end of said rock shaft inside the end bar is a hub 313 having a projecting nose 314 which is adapted to beengaged by the right-hand end portion of a pivoted plate 315. Said plate is provided with upward extensions 316 which are secured in the stifiening rod 317, the rod and platebeing disposed'behind and longitudinally of the front bar of the carriage. The extensions 316 are provided with outwardly extending lugs 318 which bear in perforated ears 319 depending from the angular brackets 18%. The plate 315 is adapted to be actuated by a finger or extension 320 which is secured by rivets 320 to a pivoted arm 321, which is part of the regular line locking train of a No. 20 Remington typewriting machine and is adapted to be turned pivotally under certain conditions. The marstops 322 are of the usual construction and need not be described in detail. The stationary stop 323 has a pivot 324 and is provided with a. downwardly extending finger 325 which operat-ively engages with the pivoted member 321. The stop 323 is connected through the finger 325 with the member 321 in such a way that when the stop is turned on its pivot 324, the member 321 will be turned on its pivot. Inthe present case the. stop 323 is thus turned automatically during the, rightward movement of the carriage. For this purpose the usual carriage-carried margin step 326, which is adjustable along the front bar of the carriage in a manner well understood, is provided with a special incline or cam face 326 which is adapted to-coact with the upper arm of the frame stop323. Theadjustable carriagestop 326 during" the rightward movement of the carriage-will engage at its cam or beveled face 326 with the stop 3.3 and exerting a cam action thereon will swing its upper end portion forward, the linger 325 being moved rearward and acting on the member 321 which will cause the extension 320 to swing theplate 315; rearward on its pivots 318. As theplate is swung rearward its right-hand end portion acting against the nose 31-1- will rock the shaft 312 and swing the arm 311 downward so that the notch 310 therein will disengage from the linger 309, thus releasing the platen shaft 413 so the platen may be turned. It will be understood that at all times other than when the stops 323 and 326 are operatively engaged at the end of the right-ward movement of the carriage, the locking arm- 311' will be maintained up in operativeposition. This is due to a constantly acting flat spring 327 which underlies the and bar 29 and is secured thereto by screws 328. Said spring has an outwardly extending end portion 329 which underlies the arm 311 and tends constantly to swing it upward. It is only when this spring is overcome by the coacting carriage stops 323 and 326 in the manner described that the locking arm 311 is swung down to its nonworking position- The various features of the operation of the invention have been explained and discussed in connection with the description of the different mechanisms which combine to constitute the invention as whole, and it is thought therefore that a further detailed lengthy description of the mode of operation is unnecessary. It will be understood that in, making use of the multiple-billing mechanismconstituting the invention the operator first pushes the carriage to the extreme righthand positiomcausing the stops 323 and 326 to coact to arrest the carriage, said stops also effecting a downward throw of the locking arm "311, thus freeing the finger 309 so that the platen may be rotated. As result the paper guiding devices on the carriage or traveling paper carrying device are registered with or in line with the magazine, stationary supply device or source of supply 1, so that the top bill sheet in the pile of folded s ieets in the magazine or source of supply may be brought down from said magazine as heretofore explained and introduced through the chute, that is,.over the paper table 281, passing under the guide fingers 290, and being brought into position with the lower or bottom edge of the multiple-bill sheet 7 in posi tion to be gripped by the platen clamp. As has been explained, the free end of the carbon 197 overlying the guide plate 279 behind the table 281 will have its free cnd'in line with the free end of the bill sheet and behind the same. The clamp 127, 128 will then be opened through the cooperation of the parts, including the arm 14A, as has been explained. In order to afford full stroke of said arm the hub 11 may be grooved as indicated at ll. Acontinuation of this groove makes a passageway for the spring 136 7 and 8). Assunr ing that the clamp 127, 128 is open and in the position shown in Fig. 8, the free ends of the bill and carbon sheets may be introduced between the olamp and the platen face, and then the handle is pulled forward, giving a continuous rotation to the platen sufficient to rotate in the present instance :lllOl i approximately revolutions so as to wind sis: plies of the paper with the interleaved carbon around the platen. During this continuous rotation the line space detent will be out t operation as will also the paper feeding rolls 172, and these parts will be restored to operative poslti on only at the end of the platen rotating movement. As has been explained, the platen when arrested will present the outer hill sheet in position to have the first line thereon written. As is well understood the writing will talre place through the ation of the usual printing instrument: ties and ribbon mechanism of the standard Ben i ton machine not herein disclosed but of re ular construction. As the first line is written the carriage will. witli the parts mounted thereon, space leftward step-by-step under the control of the usual escapeinent devices not herein shown; and when the end of the line is reacheu, the carriage will be restored from left to right and the platen line s1 need, as has been explained, by actuation of the line space handle 69. The second and subsequent lines are thereafter written, the platen being line spaced in between. all as heretofore explained. It will be understood that each character written on the outer ply of the sheet through the ribbon will be diuiilicated on each ofthe five underlying bill forms or blanks through the carbon paper or transfer material 197. The writing of the bill havi been completed, the carriage will be restored from left to rightand the handle 101, when actu ated v will turn the platen forward continrously to eject the bill. This ejection will be assisted by the pressure rolls 172. At the same time-that the platen is o ierating to eject the bill, the carbon roll holder will be positively turned to rewind the carbon paper thereon, the spring connection comprising the-spring 238 being effective to take up any slack. due to the variation in the diameters 

